Connected to Oracle Database 11g Release 11.2.0.1.0 
Connected as system@DMASLOV

SQL> 
SQL> create database link DBOFFICE
  2    connect to supermag identified by www
  3    using 'DBOFFICE';

Database link created

SQL> create table test1(article varchar2(20) not null);

Table created
SQL> insert into test1 select article from smcard@DBOFFICE where rownum < 11;

10 rows inserted

SQL> commit;

Commit complete


SQL> begin
  2    sys.dbms_scheduler.create_job(job_name            => 'SYSTEM.TEST_JOB',
  3                                  job_type            => 'PLSQL_BLOCK',
  4                                  job_action          => 'begin
  5      insert into test1 select article from smcard@DBOFFICE where rownum < 11;
  6    end;',
  7                                  start_date          => to_date(null),
  8                                  repeat_interval     => 'Freq=Minutely;Interval=1',
  9                                  end_date            => to_date(null),
 10                                  job_class           => 'DEFAULT_JOB_CLASS',
 11                                  enabled             => true,
 12                                  auto_drop           => false,
 13                                  comments            => '');
 14  end;
 15  /

PL/SQL procedure successfully completed

SQL> select count(1) from test1;

  COUNT(1)
----------
        20

SQL> select count(1) from test1;

  COUNT(1)
----------
        20

SQL> select count(1) from test1;

  COUNT(1)
----------
        20

SQL> select count(1) from test1;

  COUNT(1)
----------
        20

SQL> select count(1) from test1;

  COUNT(1)
----------
        40